翼龙

Pterosaurs were the first vertebrates to achieve powered flight.
译文：翼龙是首批实现动力飞行的脊椎动物。
Many pterosaurs had a bony crest on their skull, believed to be used for display or communication.
译文：许多翼龙的头骨上有一个骨质冠，被认为是用于展示或交流的。
Pterodactyls, a well-known group of pterosaurs, had four-winged bodies and sharp teeth.
译文：著名的翼龙种类——翼手龙，拥有四翼的身体和锋利的牙齿。
The largest pterosaur ever discovered was the Quetzalcoatlus, which had a wingspan of over 36 meters.
译文：已知最大的翼龙是quetzalcoatlus，它的翼展超过36米。
Pterosaurs lived during the age of dinosaurs, coexisting in the same ecosystems.
译文：翼龙生活在恐龙时代，与恐龙共存于同一生态系统中。
Some pterosaurs, like the Rhamphorhynchus, had relatively small heads and were probably insectivorous.
译文：有些翼龙，如拉姆普罗尼希乌斯，头部相对较小，可能是食虫性的。
Fossil evidence suggests that pterosaurs had a diverse range of diets, from fish to small reptiles.
译文：化石证据表明，翼龙有着多样化的饮食，从鱼类到小型爬行动物。
Pterosaurs had a unique respiratory system, with air sacs extending into their bones for efficient oxygen exchange.
译文：翼龙拥有独特的呼吸系统，气囊延伸至骨骼以提高氧气交换效率。
Despite their impressive flying abilities, pterosaurs were not closely related to birds or bats.
译文：尽管飞行能力出众，但翼龙并不与鸟类或蝙蝠有近亲关系。
The extinction of pterosaurs remains a topic of interest among paleontologists, as it occurred around the time of the K-T mass extinction event.
译文：翼龙的灭绝仍是古生物学家感兴趣的话题，因为这发生在K-T大灭绝事件期间。